Authors & Presenters

Nick Resnick is a K–12 education specialist, focusing his work on mathematics, school improvement, assessment, intervention, and PLCs. Previously, he served as a secondary mathematics teacher, K–12 mathematics specialist, and school site administrator.

Georgina Rivera is an elementary school principal with over 20 years of experience in public education. She works with educators and leaders to build collaborative teams and ensure all students receive high-quality mathematics instruction.

Connie Schrock, PhD, professor emeritus of mathematics, received multiple award recognitions and taught a variety of undergraduate and graduate mathematics classes while working at Emporia State University. Today, she continues to guide classroom teachers and school districts in increasing student learning.

Sarah Schuhl specializes in professional learning communities, mathematics, assessment, school improvement, and RTI. She has been a secondary mathematics teacher, high school instructional coach, and K–12 mathematics specialist.

Chris is a dynamic presenter and educator with over three decades of education experience. His vision and guidance have led schools to significant improvements in teacher efficacy and student learning.

Rea Smith is a mathematics facilitator in northwest Arkansas. She passionately supports the work of professional learning communities with a focus on common assessments to improve student and teacher learning.

Mona Toncheff, an educational presenter and author, has over 30 years of experience in public education. Mona works with educators and leaders nationwide to build collaborative teams and ensure all students receive high-quality mathematics instruction.

Gwendolyn Zimmermann, PhD, is director of assessment, research, and evaluation at Adlai E. Stevenson High School District 125, a model professional learning community district in Lincolnshire, Illinois.